module/Sway.nix

@@ -16,13 +16,14 @@ in {
 
 	services.gnome.gnome-keyring.enable = lib.mkForce false;
 	environment.systemPackages = with pkgs; [
-		gnome.adwaita-icon-theme       # GTK icons.
-		grim slurp                     # Screenshot.
-		mako                           # Notification system.
-		networkmanagerapplet           # Internet configuration.
+		gnome.adwaita-icon-theme # GTK icons.
+		grim slurp # Screenshot.
+		mako # Notification system.
+		networkmanagerapplet # Internet configuration.
 		pamixer pavucontrol pulseaudio # Audio.
-		playerctl                      # Multimedia controls.
-		wl-clipboard                   # Clipboard.
+		playerctl # Multimedia controls.
+		sway-contrib.inactive-windows-transparency # Transparent unfocused windows.
+		wl-clipboard # Clipboard.
 	];
 
 	programs.sway = {
@@ -35,4 +36,11 @@ in {
 			"--config=${config}"
 		];
 	};
+
+	environment = {
+		variables = {
+			SWAY_IWT_PATH = "${pkgs.sway-contrib.inactive-windows-transparency}/bin/inactive-windows-transparency.py";
+			# PATH        = [ "/etc/swaybin" ]; # NOTE: Kept as an example on PATH modification.
+		};
+	};
 }

module/sway/module/Style.nix

@@ -1,5 +1,5 @@
 { wallpaper, style, ... }: let
-	alpha  = style.opacity.hex;
+	alpha  = style.opacity.inactive.hex;
 	accent = style.color.accent  + alpha;
 	bg     = style.color.bg.dark + alpha;
 	border = style.color.border  + alpha;

module/sway/module/Tiling.nix

@@ -19,6 +19,9 @@
 		# Fullscreen.
 		bindsym $mod+${key.sway.window.fullscreen} fullscreen
 
+		# Dim inactive windows.
+		exec $SWAY_IWT_PATH --opacity ${toString(style.opacity.inactive.int)}
+
 		# Drag floating windows by holding down $mod and left mouse button.
 		# Resize them with right mouse button + $mod.
 		# Despite the name, also works for non-floating windows.

part/Style.nix

@@ -70,7 +70,10 @@
 		desktop     = config.stylix.opacity.desktop;
 		popup       = config.stylix.opacity.popups;
 		terminal    = config.stylix.opacity.terminal;
-		hex = "D9";
+		inactive = {
+			int = 0.85;
+			hex = "D9";
+		};
 	};
 
 	window = {

user/common/mako/default.nix

@@ -1,5 +1,5 @@
 { style, util, setting, ... }: let
-	alpha = style.opacity.hex;
+	alpha = style.opacity.inactive.hex;
 in {
 	config = util.trimTabs ''
 		anchor=top-center

user/common/template/Android.nix

@@ -49,11 +49,10 @@
 				];
 				buildInputs = with pkgs; [];
 
-				GRADLE_OPTS       = "-Dorg.gradle.project.android.aapt2FromMavenOverride = ${androidSdk}/libexec/android-sdk/build-tools/${buildTools}/aapt2";
-				JAVA_HOME         = "${jdk}";
-				LD_LIBRARY_PATH   = "${lib.makeLibraryPath buildInputs}";
-				ANDROID_SDK_ROOT  = "${androidSdk}/libexec/android-sdk/";
-				SOURCE_DATE_EPOCH = "${toString(self.lastModified)}";
+				GRADLE_OPTS      = "-Dorg.gradle.project.android.aapt2FromMavenOverride=${androidSdk}/libexec/android-sdk/build-tools/${buildTools}/aapt2";
+				JAVA_HOME        = "${jdk}";
+				LD_LIBRARY_PATH  = "${lib.makeLibraryPath buildInputs}";
+				ANDROID_SDK_ROOT = "${androidSdk}/libexec/android-sdk/";
 			};
 		};
 	};

user/common/template/Blank.nix

@@ -14,8 +14,6 @@
 			default = pkgs.mkShell rec {
 				nativeBuildInputs = with pkgs; [ ];
 				buildInputs = with pkgs; [ ];
-
-				SOURCE_DATE_EPOCH = "${toString(self.lastModified)}";
 			};
 		};
 	};

user/common/template/Latex.nix

@@ -47,7 +47,6 @@
 					tex
 				];
 				buildInputs = with pkgs; [ ];
-				SOURCE_DATE_EPOCH = "${toString(self.lastModified)}";
 			};
 		};
 	};

user/common/template/Rust.nix

@@ -32,7 +32,6 @@
 				xorg.libXi
 			];
 			LD_LIBRARY_PATH = "${lib.makeLibraryPath buildInputs}";
-			SOURCE_DATE_EPOCH = "${toString(self.lastModified)}";
 		};
 	};
 }